QoS-Aware Power Control Resource Allocation in LTE Femtocell

• Main Authors: Li, Xing-Rong, 李星融
• Other Authors: Wang, Chia-Pin
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/53894936435738708815

碩士 === 國立臺灣師範大學 === 電機工程研究所 === 102 === Home Evolved Node B (HeNB), also called Femtocell will prevail in the future Long Term Evolution (LTE) networks because of certain large amounts of indoor users and its capability to solve the problem of spectrum insufficiency by frequency reuse. In this paper, we tackled the interference problems in Femtocell networks and present an interference control scheme. The proposed scheme dynamically adjusts the transmission power of HeNB based on its “troubling” property and “servicing” property so as to balance the provisioning of Quality of Service (QoS) for users and the avoidance of interference to neighboring HeNBs. We conducted simulations to compare the performance of our proposed scheme with that of other approaches. The results illustrate that our approach can effectively avoid interferences between neighboring HeNBs to improve the aggregate throughput of femtocell networks, and simultaneously maintain the user-perceived QoS in comparison with other schemes, so as to advance the overall LTE spectrum efficiency.